低氧对脂肪细胞发育及脂质代谢调控研究进展

Advances in regulation of hypoxia on adipocyte development and lipid metabolism

摘要:

脂肪细胞的生长、分化与增殖贯穿整个生命过程，脂肪细胞中脂质代谢紊乱影响脂肪组织免疫和全身能量代谢。脂质代谢参与调控机体多种疾病的发生与发展，如高脂血症、非酒精性脂肪肝病、糖尿病和癌症等，对人和动物健康具有重大威胁。低氧诱导因子（hypoxia inducible factor，HIF）是介导机体组织器官中氧感受器的主要转录因子，HIF可调控脂质合成、脂肪酸代谢和脂滴形成并诱导疾病发生。但由于低氧程度、时间和作用方式的不同，对机体脂肪细胞发育和脂质代谢产生有害或有益的影响还无从定论。本文总结了低氧介导转录因子的调控作用以及对脂肪细胞发育和脂质代谢调控的研究进展，旨在揭示低氧诱导脂肪细胞代谢途径变化的潜在机制。

关键词:低氧;低氧诱导因子;脂肪细胞发育;脂质代谢

Abstract:

The growth, differentiation and proliferation of adipose cells run through the whole life process. Dysregulation of lipid metabolism in adipose cells affects adipose tissue immunity and systemic energy metabolism. Increasingly available data suggest that lipid metabolism is involved in regulating the occurrence and development of various diseases, such as hyperlipidemia, nonalcoholic fatty liver disease, diabetes and cancer, which pose a major threat to human and animal health. Hypoxia inducible factor (HIF) is a major transcription factor mediating oxygen receptors in tissues and organs. HIF can induce disease by regulating lipid synthesis, fatty acid metabolism and lipid droplet formation. However, due to the difference of hypoxia degree, time and mode of action, there is no conclusive conclusion whether it has harmful or beneficial effects on the development of adipocytes and lipid metabolism. This article summarizes the regulation of hypoxia stress mediated transcription regulators and regulation of adipocyte development and lipid metabolism, aiming to reveal the potential mechanism of hypoxia induced changes in adipocyte metabolism pathways.

Key words:low oxygen;hypoxia inducible factor;adipocyte development;lipid metabolism